Automatic feeding and discharging device for alloy bar machining

Abstract

The invention discloses an automatic feeding and discharging device for alloy bar machining, and belongs to the technical field of machining feeding and discharging, the automatic feeding and discharging device comprises a base device, a circulation device, a feeding device and a discharging device are arranged on the base device, the circulation device is used for driving an alloy bar to circulate, the feeding device is used for feeding the alloy bar to a machining position, and the discharging device is used for discharging the alloy bar. The discharging device is used for placing the machined alloy bars on the circulation device. The circulation device drives a large arm and a small arm to rotate at the same time through a rotating arm motor, so that a preset movement track is achieved, the alloy bar is taken down from a bar support, the alloy bar is placed in the feeding device, the machined alloy bar is taken out of the discharging device, and the automation degree is high; the alloy bar can be supported by the transfer bar support, so that the alloy bar is driven to be transferred at different stations, an opening of the transfer bar support is always upward through the gravity ball, reliable transfer of the alloy bar is achieved, and the surface of the alloy bar cannot be damaged.

Description

Technical Field

[0001] The invention relates to the technical field of material loading and unloading for machining, and in particular to an automatic material loading and unloading device for machining alloy bars. Background Art

[0002] Alloy rods are a kind of broad raw material, which not only have a wide variety but also a wide range of applicable scenarios. They are mostly used for drills, milling cutters, reamers, etc.; in the process of further processing of alloy rods, the alloy rods need to be transferred, but the alloy rods are relatively difficult to transport during the processing due to their special shape. Excessive clamping will cause damage to the rods, and too loose clamping may cause them to fall. In the loading and unloading devices for alloy rod processing in the prior art, the alloy rods are mainly clamped by a clamping claw structure. First, the clamping method for loading and unloading the rods has a certain instability. Secondly, the surface of the alloy rod may be damaged during the clamping process, thereby affecting the accuracy of subsequent processing of the alloy rods. In severe cases, it may also affect the use of subsequent alloy rod processed parts, resulting in serious consequences. Summary of the invention

[0003] In view of the above technical problems, the technical solution adopted by the present invention is: an automatic loading and unloading device for alloy bar processing, comprising a base device, the base device comprising a bottom plate, the base device is used to place the alloy bar, the base device is provided with a circulation device, a loading device and a unloading device, the circulation device comprises a swivel seat, the swivel seat is fixedly mounted on the bottom plate, the circulation device is used to circulate with the alloy bar, the loading device comprises a loading rack, the loading rack is fixedly mounted on the bottom plate, the loading device is used to feed the alloy bar to the processing site, the unloading device comprises a unloading rack, the unloading rack is fixedly mounted on the bottom plate, and the unloading device is used to place the processed alloy bar on the circulation device.

[0004] Furthermore, the base device comprises a rod inlet box fixedly mounted on the bottom plate, a rod support is fixedly mounted on the rod inlet box, a rod outlet rack is fixedly mounted on the bottom plate, and a rod outlet slope is arranged on the rod outlet rack.

[0005] The alloy bars to be processed are stacked in the rod feeding box. The bottom bar will be located on the rod support, and the following bars will be arranged in sequence on the rod feeding box. When the circulation device takes away the bar on the rod support, the next alloy bar to be processed in the rod feeding box will roll onto the rod support through the inclined surface.

[0006] The circulation device places the processed alloy bars on the bar discharge rack and leaves the device through the bar discharge slope.

[0007] Furthermore, the circulation device includes a rotating motor fixedly mounted on a swivel seat, a motor gear is fixedly mounted on the motor shaft of the rotating motor, a center swivel seat is rotatably mounted on the swivel seat, a center gear is fixedly mounted on the center swivel seat, the motor gear is meshed with the center gear, a swivel arm motor is fixedly mounted on the center swivel seat, a swivel arm gear is fixedly mounted on the motor shaft of the swivel arm motor, a large arm is rotatably mounted on the center swivel seat, an internal gear is fixedly mounted on the large arm, an external gear is rotatably mounted on the internal gear, the swivel arm gear is meshed with the internal gear, the swivel arm gear is meshed with the external gear, and a small arm mechanism is arranged on the large arm.

[0008] Furthermore, the forearm mechanism includes a forearm rotatably mounted on the upper arm, a forearm gear fixedly mounted on the forearm, a transmission belt wrapped around the forearm gear and the external gear, a rotating block rotatably mounted on the forearm, a transfer rod support fixedly mounted on the rotating block, and a gravity ball fixedly mounted below the rotating block.

[0009] Furthermore, the module of the internal gear is the same as the module of the external gear, and the number of teeth of the internal gear is different from the number of teeth of the external gear.

[0010] The rotation of the rotating motor drives the motor gear to rotate, thereby driving the center gear and the center swivel seat to rotate relative to the swivel seat, thereby driving the upper arm and the lower arm to rotate as a whole, moving the transfer rod support to the bottom of the rod support, and the rotation of the arm motor drives the arm gear to rotate, thereby driving the inner gear and the upper arm to rotate, thereby driving the upper arm to rotate and lift around the center swivel seat. At the same time, the rotation of the arm gear will drive the outer gear to rotate. Since the number of teeth of the outer gear and the inner gear is different, the outer gear and the inner gear have relative rotation, so the transmission belt drives the forearm gear and the forearm to rotate, thereby driving the forearm to rotate upward relative to the upper arm, and the alloy rod on the rod support is lifted up by the transfer rod support. The gravity ball has a certain weight, which is used to keep the support mouth of the transfer rod support always facing upward.

[0011] When the transfer rod support lifts up the alloy rod, the rotating motor drives the motor gear to rotate, thereby driving the center swivel seat to rotate, and the alloy rod is moved to the top of the lower pressure plate through the transfer rod support, and then the alloy rod is placed into the fixed rod support through the transfer rod support.

[0012] Furthermore, the feeding device includes an electric cylinder fixedly mounted on the feeding rack, a push rod fixedly mounted on the top of the electric cylinder, a fixed rod support fixedly mounted on the feeding rack, a downward pressure rod slidably mounted on the fixed rod support, an outer spring is arranged between the downward pressure rod and the feeding rack, and a trigger mechanism is arranged on the feeding rack.

[0013] Furthermore, the trigger mechanism includes a fixed block fixedly mounted on the loading rack, a sensor plate fixedly mounted on the fixed block, a downward pressure spring fixedly mounted inside the fixed block, a downward pressure plate fixedly mounted on the top of the downward pressure spring, and the downward pressure plate is located below the downward pressure rod.

[0014] When the circulation device places the alloy rod on the fixed rod support, the alloy rod falls onto the lower pressure rod, and the gravity of the alloy rod presses the lower pressure rod downward, the outer spring is compressed, and the lower pressure rod contacts the lower pressure plate, driving the lower pressure plate to descend, and the lower pressure spring is compressed. When the lower pressure plate contacts the sensor plate, the electric cylinder extends, driving the push-out rod forward, and the alloy rod on the fixed rod support is pushed to the processing location through the push-out rod.

[0015] Furthermore, the unloading device includes a unloading motor fixedly mounted on the unloading rack, a motor wheel fixedly mounted on the motor shaft of the unloading motor, a limit support fixedly mounted on the unloading rack, a transmission wheel rotatably mounted on the limit support, a friction belt wrapped around the outside of the transmission wheel, the friction belt cooperates with the motor wheel, a fixing frame fixedly mounted on the unloading rack, a sliding disk slidably mounted on the fixing frame, and an extrusion spring is arranged between the sliding disk and the friction belt.

[0016] The processed alloy rods are placed on the friction belt. At this time, the transfer rod support moves between the limit support and the fixed frame. The unloading motor rotates to drive the motor wheel to rotate, thereby driving the friction belt to transport the processed alloy rods toward the sliding disk. When the alloy rod contacts the sliding disk, the friction belt drives the alloy rod to continue moving forward, which will drive the sliding disk to slide in the fixed frame, and the extrusion spring is compressed. When the sliding disk contacts the sensor plate, the rotating arm motor rotates to drive the upper arm and the lower arm to lift the transfer rod support. Then the rotating motor rotates to drive the center swivel seat to rotate around the swivel seat, and the processed alloy rods are placed on the rod outlet rack and leave the device through the rod outlet slope.

[0017] Compared with the prior art, the present invention has the following advantages: (1) the circulation device provided in the present invention drives the upper arm and the lower arm to rotate simultaneously through the rotating arm motor, thereby realizing a preset motion trajectory, removing the alloy rod from the rod holder, placing the alloy rod in the loading device, and taking the processed alloy rod out from the unloading device, with a high degree of automation; (2) the transfer rod holder of the circulation device provided in the present invention can hold the alloy rod, thereby driving the alloy rod to be transferred to different workstations, and through the gravity ball, the opening of the transfer rod holder is always facing upward, thereby realizing reliable transfer of the alloy rod without damaging the surface of the alloy rod; (3) the rod holder and the rod feeding box on the base device provided in the present invention are arranged so that the circulation device can drive one alloy rod to circulate each time, and the next alloy rod automatically arrives at the rod holder. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0019] Figure 2 It is a schematic diagram of the structure of the base device of the present invention.

[0020] Figure 3 The structure of the circulation device of the present invention is shown in FIG. Figure 1.

[0021] Figure 4 The structure of the circulation device of the present invention is shown in FIG. Figure 2 .

[0022] Figure 5 The structure of the circulation device of the present invention is shown in FIG. Figure 3 .

[0023] Figure 6 The structure of the feeding device of the present invention is shown in FIG. Figure 1 .

[0024] Figure 7 The structure of the feeding device of the present invention is shown in FIG. Figure 2 .

[0025] Figure 8 The structure of the feeding device of the present invention is shown in FIG. Figure 3 .

[0026] Fig. 9 The structure of the feeding device of the present invention is shown in FIG. Figure 1 .

[0027] Fig.10 The structure of the feeding device of the present invention is shown in FIG. Figure 1 .

[0028] Figure numbers: 101-bottom plate; 102-rod feeding box; 103-rod support; 104-rod outlet rack; 105-rod outlet slope; 201-rotating seat; 202-rotating motor; 203-motor gear; 204-center gear; 205-center rotating seat; 206-rotating arm motor; 207-rotating arm gear; 208-big arm; 209-internal gear; 210-external gear; 211-transmission belt; 212-small arm gear; 213-small arm; 214-rotating block; 215-transfer rod support; 216-rotating arm gear; 217-rotating arm gear; 218-rotating arm gear; 219-rotating arm gear; 220-rotating arm gear; 221-rotating arm gear; 222-rotating arm gear; 223-rotating arm gear; 224-rotating block; 225-rotating rod support; 226-rotating arm gear; 227-rotating arm gear; 228-rotating arm gear; 229-rotating arm gear; 230-rotating arm gear; 231-rotating arm gear; 232-rotating arm gear; 233-rotating arm gear; 234-rotating block; 235-rotating arm support; 236-rotating arm gear; 237-rotating arm gear; 238-rotating arm gear; 239-rotating arm gear; 240-rotating arm gear; 241-rotating arm gear; 242-rotating arm gear; 243-rotating arm gear; 244-rotating block; 245-rotating arm support; 246-rotating arm gear; 247-rotating arm gear; 248-rotating 6-gravity ball; 301-loading rack; 302-electric cylinder; 303-ejection rod; 304-fixed rod support; 305-down pressure rod; 306-down pressure plate; 307-down pressure spring; 308-outer spring; 309-fixed block; 310-sensor plate; 401-unloading rack; 402-unloading motor; 403-motor wheel; 404-limiting support; 405-friction belt; 406-fixed rack; 407-sliding disk; 408-extrusion spring; 409-transmission wheel; 410-sensor plate. DETAILED DESCRIPTION

[0029] The specific implementation of the present invention will be further described below in conjunction with the accompanying drawings.

[0030] Example: Reference Figure 1-Figure 10An automatic loading and unloading device for alloy bar processing includes a base device, the base device includes a bottom plate 101, the base device is used to place the alloy bars, the base device is provided with a circulation device, a loading device and a unloading device, the circulation device includes a rotating seat 201, the rotating seat 201 is fixedly mounted on the bottom plate 101, the circulation device is used to carry the alloy bars for circulation, the loading device includes a loading rack 301, the loading rack 301 is fixedly mounted on the bottom plate 101, the loading device is used to feed the alloy bars to the processing location, the unloading device includes an unloading rack 401, the unloading rack 401 is fixedly mounted on the bottom plate 101, and the unloading device is used to place the processed alloy bars on the circulation device.

[0031] like Figure 2 As shown, the base device includes a rod inlet box 102 fixedly mounted on a bottom plate 101 , a rod support 103 fixedly mounted on the rod inlet box 102 , a rod outlet rack 104 fixedly mounted on the bottom plate 101 , and a rod outlet slope 105 provided on the rod outlet rack 104 .

[0032] The alloy bars to be processed are stacked in the rod input box 102, the bottom bar will be located on the rod support 103, and the following bars are arranged in sequence on the rod input box 102. When the circulation device takes away the bar on the rod support 103, the next alloy bar to be processed in the rod input box 102 will roll onto the rod support 103 through the inclined surface.

[0033] The circulation device places the processed alloy bars on the bar discharge rack 104 , and the bars leave the device through the bar discharge slope 105 .

[0034] like Figure 3-Figure 5 As shown, the circulation device includes a rotating motor 202 fixedly mounted on a swivel seat 201, a motor gear 203 fixedly mounted on the motor shaft of the rotating motor 202, a center swivel seat 205 rotatably mounted on the swivel seat 201, a center gear 204 fixedly mounted on the center swivel seat 205, the motor gear 203 meshes with the center gear 204, a swivel arm motor 206 fixedly mounted on the center swivel seat 205, a swivel arm gear 207 fixedly mounted on the motor shaft of the swivel arm motor 206, a large arm 208 rotatably mounted on the center swivel seat 205, an internal gear 209 fixedly mounted on the large arm 208, an external gear 210 rotatably mounted on the internal gear 209, the swivel arm gear 207 meshes with the internal gear 209, the swivel arm gear 207 meshes with the external gear 210, and a small arm mechanism is provided on the large arm 208.

[0035] like Figure 3-Figure 5As shown, the forearm mechanism includes a forearm 213 rotatably mounted on the upper arm 208, a forearm gear 212 fixedly mounted on the forearm 213, a transmission belt 211 wrapped around the forearm gear 212 and the outer gear 210, a rotating block 214 rotatably mounted on the forearm 213, a transfer rod support 215 fixedly mounted on the rotating block 214, and a gravity ball 216 fixedly mounted below the rotating block 214.

[0036] like Figure 3-Figure 5 As shown, the module of the internal gear 209 is the same as the module of the external gear 210 , and the number of teeth of the internal gear 209 is different from the number of teeth of the external gear 210 .

[0037] The rotation of the rotary motor 202 drives the motor gear 203 to rotate, thereby driving the central gear 204 and the central rotating seat 205 to rotate relative to the rotating seat 201, thereby driving the upper arm 208 and the lower arm 213 to rotate as a whole, and moving the transfer rod holder 215 to the bottom of the rod holder 103. The rotation of the rotating arm motor 206 drives the rotating arm gear 207 to rotate, thereby driving the internal gear 209 and the upper arm 208 to rotate, thereby driving the upper arm 208 to rotate and lift around the central rotating seat 205, and at the same time, the rotating arm gear 208 is rotated and lifted. 07 rotation will drive the outer gear 210 to rotate. Since the number of teeth of the outer gear 210 and the inner gear 209 is different, the outer gear 210 and the inner gear 209 have relative rotation. Therefore, the transmission belt 211 drives the small arm gear 212 and the small arm 213 to rotate, thereby driving the small arm 213 to rotate upward relative to the large arm 208, and the alloy rod on the rod support 103 is lifted up by the transfer rod support 215. The gravity ball 216 has a certain weight, which is used to keep the support mouth of the transfer rod support 215 always facing upward.

[0038] When the transfer rod support 215 lifts the alloy rod, the rotating motor 202 rotates to drive the motor gear 203 to rotate, thereby driving the central rotating seat 205 to rotate, and the alloy rod is moved to the top of the lower pressure plate 306 through the transfer rod support 215, and then the alloy rod is placed in the fixed rod support 304 through the transfer rod support 215.

[0039] like Figure 6-Figure 8 As shown, the feeding device includes an electric cylinder 302 fixedly mounted on a feeding rack 301, a push rod 303 fixedly mounted on the top of the electric cylinder 302, a fixed rod support 304 fixedly mounted on the feeding rack 301, a lower pressure rod 305 slidably mounted on the fixed rod support 304, an outer spring 308 is arranged between the lower pressure rod 305 and the feeding rack 301, and a trigger mechanism is arranged on the feeding rack 301.

[0040] like Figure 6-Figure 8As shown, the trigger mechanism includes a fixed block 309 fixedly mounted on the loading rack 301, a sensor plate 310 fixedly mounted on the fixed block 309, a downward pressure spring 307 fixedly mounted inside the fixed block 309, a downward pressure plate 306 fixedly mounted on the top of the downward pressure spring 307, and the downward pressure plate 306 is located below the downward pressure rod 305.

[0041] When the circulation device places the alloy rod on the fixed rod support 304, the alloy rod falls onto the lower pressure rod 305, and the lower pressure rod 305 is pressed downward by the gravity of the alloy rod, the outer spring 308 is compressed, and the lower pressure rod 305 contacts the lower pressure plate 306, driving the lower pressure plate 306 to descend, and the lower pressure spring 307 is compressed. When the lower pressure plate 306 contacts the sensor plate 310, the electric cylinder 302 extends, driving the ejection rod 303 forward, and the alloy rod on the fixed rod support 304 is pushed to the processing location through the ejection rod 303.

[0042] like Fig. 9 , Fig.10 As shown, the unloading device includes a unloading motor 402 fixedly mounted on a unloading frame 401, a motor wheel 403 fixedly mounted on the motor shaft of the unloading motor 402, a limit support 404 fixedly mounted on the unloading frame 401, a transmission wheel 409 rotatably mounted on the limit support 404, a friction belt 405 wrapped around the outside of the transmission wheel 409, the friction belt 405 cooperates with the motor wheel 403, a fixed frame 406 fixedly mounted on the unloading frame 401, a sliding disk 407 slidably mounted on the fixed frame 406, and an extrusion spring 408 is arranged between the sliding disk 407 and the friction belt 405.

[0043] The processed alloy rod is placed on the friction belt 405. At this time, the transfer rod support 215 moves between the limit support 404 and the fixed frame 406. The unloading motor 402 rotates to drive the motor wheel 403 to rotate, thereby driving the friction belt 405 to transport the processed alloy rod toward the sliding disk 407. When the alloy rod contacts the sliding disk 407, the friction belt 405 drives the alloy rod to continue to move forward, which will drive the sliding disk 407 to slide in the fixed frame 406, and the extrusion spring 408 is compressed. When the sliding disk 407 contacts the sensor plate 410, the rotating arm motor 206 rotates to drive the upper arm 208 and the lower arm 213 to lift the transfer rod support 215. Then the rotating motor 202 rotates to drive the central rotating seat 205 to rotate around the rotating seat 201, and the processed alloy rod is placed on the rod outlet rack 104, and leaves the device through the rod outlet slope 105.

[0044] The working principle of the automatic loading and unloading device for alloy bar processing disclosed in the present invention is as follows: the alloy bars to be processed are stacked in the rod feeding box 102, the lowest bar will be located on the rod support 103, and the following bars are arranged in sequence on the rod feeding box 102. When the circulation device takes away the bar on the rod support 103, the next alloy bar to be processed in the rod feeding box 102 will roll onto the rod support 103 through the inclined surface. The rotation of the rotary motor 202 drives the motor gear 203 to rotate, thereby driving the center gear 204 and the center rotating seat 205 to rotate relative to the rotating seat 201, thereby driving the upper arm 208 and the lower arm 213 to rotate as a whole, and moving the transfer rod support 215 to the bottom of the rod support 103. The rotation of the rotating arm motor 206 drives the rotating arm gear 207 to rotate, thereby driving the internal gear 209 and the upper arm 208 to rotate, thereby driving the upper arm 208 to rotate and lift around the center rotating seat 205, and at the same time, the rotating arm gear 208 is rotated and rotated. 07 rotation will drive the outer gear 210 to rotate. Since the number of teeth of the outer gear 210 and the inner gear 209 is different, the outer gear 210 and the inner gear 209 rotate relative to each other. Therefore, the transmission belt 211 drives the small arm gear 212 and the small arm 213 to rotate, thereby driving the small arm 213 to rotate upward relative to the large arm 208, and the alloy rod on the rod support 103 is lifted by the transfer rod support 215. The gravity ball 216 has a certain weight, which is used to keep the support mouth of the transfer rod support 215 always facing upward. After the transfer rod support 215 lifts the alloy rod, the rotation motor 202 rotates to drive the motor gear 203 to rotate, thereby driving the center rotating seat 205 to rotate, and the alloy rod is moved to the top of the lower pressing plate 306 by the transfer rod support 215, and then the alloy rod is placed in the fixed rod support 304 by the transfer rod support 215. When the circulation device places the alloy rod on the fixed rod support 304, the alloy rod falls onto the lower pressure rod 305, and the lower pressure rod 305 is pressed downward by the gravity of the alloy rod, the outer spring 308 is compressed, and the lower pressure rod 305 contacts the lower pressure plate 306, driving the lower pressure plate 306 to descend, and the lower pressure spring 307 is compressed. When the lower pressure plate 306 contacts the sensor plate 310, the electric cylinder 302 extends, driving the ejection rod 303 forward, and the alloy rod on the fixed rod support 304 is pushed to the processing location through the ejection rod 303.The processed alloy rod is placed on the friction belt 405. At this time, the transfer rod support 215 moves between the limit support 404 and the fixed frame 406. The unloading motor 402 rotates to drive the motor wheel 403 to rotate, thereby driving the friction belt 405 to transport the processed alloy rod toward the sliding disk 407. When the alloy rod contacts the sliding disk 407, the friction belt 405 drives the alloy rod to continue to move forward, which will drive the sliding disk 407 to slide in the fixed frame 406, and the extrusion spring 408 is compressed. When the sliding disk 407 contacts the sensor plate 410, the rotating arm motor 206 rotates to drive the upper arm 208 and the lower arm 213 to lift the transfer rod support 215. Then the rotating motor 202 rotates to drive the central rotating seat 205 to rotate around the rotating seat 201, and the processed alloy rod is placed on the rod outlet rack 104, and leaves the device through the rod outlet slope 105.

[0045] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An automatic loading and unloading device for alloy bar processing, comprising a base device, characterized in that: The base device comprises a bottom plate (101), the base device is used to place alloy bars, the base device is provided with a circulation device, a loading device and a unloading device, the circulation device comprises a rotating seat (201), the rotating seat (201) is fixedly mounted on the bottom plate (101), the circulation device is used to carry the alloy bars for circulation, the loading device comprises a loading rack (301), the loading rack (301) is fixedly mounted on the bottom plate (101), the loading device is used to feed the alloy bars to a processing location, the unloading device comprises a unloading rack (401), the unloading rack (401) is fixedly mounted on the bottom plate (101), and the unloading device is used to place the processed alloy bars on the circulation device; The circulation device comprises a rotating motor (202) fixedly mounted on a rotating seat (201), a motor gear (203) fixedly mounted on the motor shaft of the rotating motor (202), a central rotating seat (205) rotatably mounted on the rotating seat (201), a central gear (204) fixedly mounted on the central rotating seat (205), the motor gear (203) meshing with the central gear (204), and a rotating arm motor (206) fixedly mounted on the central rotating seat (205). A swing arm gear (207) is fixedly mounted on the motor shaft of the swing arm motor (206); a large arm (208) is rotatably mounted on the central rotating seat (205); an internal gear (209) is fixedly mounted on the large arm (208); an external gear (210) is rotatably mounted on the internal gear (209); the swing arm gear (207) is meshed with the internal gear (209); the swing arm gear (207) is meshed with the external gear (210); and a small arm mechanism is provided on the large arm (208).

2. The automatic loading and unloading device for alloy bar processing according to claim 1 is characterized in that: The base device comprises a rod inlet box (102) fixedly mounted on a bottom plate (101), a rod support (103) fixedly mounted on the rod inlet box (102), a rod outlet rack (104) fixedly mounted on the bottom plate (101), and a rod outlet slope (105) provided on the rod outlet rack (104).

3. The automatic loading and unloading device for alloy bar processing according to claim 1 is characterized in that: The forearm mechanism comprises a forearm (213) rotatably mounted on a large arm (208); a forearm gear (212) is fixedly mounted on the forearm (213); a transmission belt (211) is wound around the forearm gear (212) and an external gear (210); a rotating block (214) is rotatably mounted on the forearm (213); a transfer rod support (215) is fixedly mounted on the rotating block (214); and a gravity ball (216) is fixedly mounted below the rotating block (214).

4. The automatic loading and unloading device for alloy bar processing according to claim 3 is characterized in that: The module of the internal gear (209) is the same as the module of the external gear (210), and the number of teeth of the internal gear (209) is different from the number of teeth of the external gear (210).

5. The automatic loading and unloading device for alloy bar processing according to claim 1 is characterized in that: The feeding device comprises an electric cylinder (302) fixedly mounted on a feeding frame (301), a push rod (303) fixedly mounted on the top of the electric cylinder (302), a fixed rod support (304) fixedly mounted on the feeding frame (301), a pressing rod (305) slidably mounted on the fixed rod support (304), an outer spring (308) is arranged between the pressing rod (305) and the feeding frame (301), and a trigger mechanism is arranged on the feeding frame (301).

6. The automatic loading and unloading device for alloy bar processing according to claim 5 is characterized in that: The trigger mechanism comprises a fixed block (309) fixedly mounted on the loading rack (301), a sensor plate (310) fixedly mounted on the fixed block (309), a downward pressure spring (307) fixedly mounted inside the fixed block (309), a downward pressure plate (306) fixedly mounted on the top of the downward pressure spring (307), and the downward pressure plate (306) is located below the downward pressure rod (305).

7. The automatic loading and unloading device for alloy bar processing according to claim 1 is characterized in that: The unloading device comprises an unloading motor (402) fixedly mounted on an unloading frame (401); a motor wheel (403) is fixedly mounted on the motor shaft of the unloading motor (402); a limit bracket (404) is fixedly mounted on the unloading frame (401); a driving wheel (409) is rotatably mounted on the limit bracket (404); a friction belt (405) is wound around the driving wheel (409); the friction belt (405) cooperates with the motor wheel (403); a fixing frame (406) is fixedly mounted on the unloading frame (401); a sliding disk (407) is slidably mounted on the fixing frame (406); and a compression spring (408) is arranged between the sliding disk (407) and the friction belt (405).

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